10040839 has 2 divisors, whose sum is σ = 10040840. Its totient is φ = 10040838.

The previous prime is 10040831. The next prime is 10040843. The reversal of 10040839 is 93804001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10040839 - 2³ = 10040831 is a prime.

It is equal to p₆₆₇₁₃₂ and since 10040839 and 667132 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10040831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5020419 + 5020420.

It is an arithmetic number, because the mean of its divisors is an integer number (5020420).

Almost surely, 2^10040839 is an apocalyptic number.

10040839 is a deficient number, since it is larger than the sum of its proper divisors (1).

10040839 is an equidigital number, since it uses as much as digits as its factorization.

10040839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 10040839 is about 3168.7282938113. The cubic root of 10040839 is about 215.7363538545.

The spelling of 10040839 in words is "ten million, forty thousand, eight hundred thirty-nine".